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Fizzy Drinks: Stoichiometry You Can Taste
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This Activity is suitable for a high school chemistry or introductory college chemistry lab. It shows a very practical use of stoichiometry--that of making a carbonated drink similar to the popular Fizzies tablets that are added to water. The ingredients used are unsweetened powdered drink mix, aspartame sweetener (or sugar), citric acid, and baking soda. The citric acid and baking soda, when in solution, react to form carbon dioxide gas. Students are first of all challenged to try to make the drink using trial and error. This generally leads to poor results, since too much of any one ingredient will produce an unpleasant taste. However, by examining the complete balanced equation and using stoichiometry, students can easily determine the correct ratios of citric acid and sodium bicarbonate, which makes for a great tasting fizzy drink.
Keywords:
High School / Introductory ChemistryKeywords:
Laboratory InstructionKeywords:
JCE Classroom ActivityKeywords:
StoichiometryCiting Articles
Citation data is made available by participants in CrossRef's Cited-by Linking service. For a more comprehensive list of citations to this article, users are encouraged to perform a search in SciFinder.
This article has been cited by 2 ACS Journal articles (2 most recent appear below).
Determining the Pressure inside an Unopened Carbonated Beverage
Hans de GrysJournal of Chemical Education2007 84 (7), 1117Determining the Pressure inside an Unopened Carbonated Beverage
Hans de GrysJournal of Chemical Education2007 84 (7), 1117Soft drinks provide a unique way to explore chemical principles. A challenging exercise for students is to determine the pressure of the carbon dioxide gas inside a sealed 12 ounce soft drink can. When presented as an open-ended problem, this exercise ...
Use of Chloroisocyanuarates for Disinfection of Water: Application of Miscellaneous General Chemistry Topics
Gabriel Pinto , Brian RohrigJournal of Chemical Education2003 80 (1), 41Use of Chloroisocyanuarates for Disinfection of Water: Application of Miscellaneous General Chemistry Topics
Gabriel Pinto , Brian RohrigJournal of Chemical Education2003 80 (1), 41This paper presents a set of motivating exercises to study various general chemistry topics such as formulation, molar mass, stoichiometry, chemical equations, balanced equations, oxidation states, acid–base reactions, tautomerism, calculation of formal ...
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- Received: August 03, 2009
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